Patents Assigned to Centre d'Etudes et de Recherches de l'Industrie des Liants Hydrauliques
  • Device for measuring the dust content of a gas stream
    Patent number: 4024407
    Abstract: A device for measuring dust content in a gas stream comprising a light soe, a photosensitive receiver, and means to direct an essentially dust free stream against the main gas stream to form a dust curtain into which the beam penetrates and reflects to the receiver.
    Type: Grant
    Filed: May 15, 1975
    Date of Patent: May 17, 1977
    Assignee: Centre d'Etudes et de Recherches de l'Industrie des Liants Hydrauliques
    Inventors: Jean-Paul Meric, Raymond Peltier